Adolf von Henselt was a virtuoso pianist whose études are known for their extreme demand on hand span and finger independence. This piece combines bravura technique with the lush, Romantic harmonic language of the mid-19th century.
At Henle 7 this is a late-advanced work — the technical demands are serious and sustained. The main demands: fine finger independence within the hand; fast passage work that stays light and even at tempo; and a true singing tone, with the melody floating above the accompaniment.
Beyond that, expect chord voicing — bringing out one note inside a handful of others.
Mastering the wide-span arpeggiations while keeping a legato, singing tone is the central difficulty.
Comparable difficulty and character — good candidates for what to learn next.
A level or two down with the same spirit — ideal if this piece is still out of reach.
Where this piece's skills lead: slightly harder works making similar technical demands.
Etude in C major is rated Henle level 7 of 9 — late advanced repertoire, roughly ABRSM grade 8 and above. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 7 — meaning you can already play level 6–7 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Etude in C major lasts about 3 minutes.
Etude in C major is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Etude in A minor by Adolf von Henselt, Ballade by Adolf von Henselt, Das ferne Land by Adolf von Henselt — see the full similar-pieces list on this page.